Apron for lathes.



No. 762,482. PATENTED JUNE 14, 1904. W. LODGE & N. D. OHARD.

APRON FOR LATHES.

APPLICATION nun JULY 28,1903.

N0 HODEL.

3 SHEETS-SHEET 1.

uh human n No. 762,482. PATENTED JUNE 14, 1904'. W. LODGE & N. D. CHARD.

APRON FOR LATHES. uruomrqn rum) JULY 28. 1903. I

3 SHEETS-3251: 2.

H0 MODEL.

P-ATENTED JUNE 14, 1904. W. LODGE & N. D. GHARD.

APRON FOR LATHBS.

APYLIOATION FILED JULY 28 1903 A i- Q J fi No. 762.482. Patented June 14,1904.

- 'UNITE STATES PATE T OFFICE.

WILLIAM LODGE ANI) NICHOLAS I (TIL-UH), ()F (INFINNA'IL OIIIO, AS-

SIHNURS TO THE LODGE A: SIIIILI'IY .\I.-\("IIl.\'l-I 'I()()I. (.().\IIANY, OF (YINCINNA'iI, Ulllt). A C(ililOlL-YFIQN.

APRON FCR LATHYES.

SPECIFICATION forming part of Letters Patent No. 762,482, dated June 14, 1904.

I Application filed July 28, 1903. Serial No. 167.367. No modal. I I

sliding thereon. 7 represents 'a sleeve loose To all who), it may milmnrn:

Be it known that we, \VILLLUI Loom. and on shaft 8 represents the other clutch o i Nlcnoms l). Guano, citizens of the United member, keyed on sleeve 7 and ournaled in States, residing at Cincinnati, in the county of r the apron-bracket 9. represents a second g 5 llamiltonandStateofUhio.haveinventedcer- 5 sleeve keyed on sleeve 7. adapted to slide tain new and useful Improvements in Aprons 3 thereon and provided with right and left hand for Lathes, of which the following is a specihevel -gears ll and I2. Sleeve II) is jourlication. naled in the apron-lu-mdcet 13 and provided ()ur invention relates to an improved carwith the yoke H for shifting said sleeve.

1 riage-feed for engine-ladies. Clutch 6 has the yoke for shifting the The features of out-invention are more fully clutch member 6 on the shaft 5. l6 reproset forth in the description of the aecompanysents a spur-gear having a sleeve'hnb l7 jour- 6o ing drawings, making a part of this'specilit-analed on the stub-shaft 18. 19 represents :1 tion, in which bevel gearqvheel fixed on the sleeve 17 and 5 Fi urelis afrontelevation of our im iroved ada )ted to be inter-meshed by either of gear- 1 I carriage and apron in position upon the bed 5 wheels 11 or 12 as the sleeve 10 1S shifted of the lathe. Fig. 2 is a reverse view of the either to the right or left.

The levers for operating the clutch and rereverse side of the. mocha ism mounted upon versmg-gears are shown m Figs. 1 and in the apron. B 1g. 31sa section on line u- .r, I 1g. g 20 2, illustrating the mam power driving means. .wln(-h 21 represents a hand-lever lixed to the Fig. 4 1s a section on lmc 1. 1-, Fig. 2, showing i rock-shaft 21', the inner end of which shaft the means for rapid return of the carriage. has a rock-arm 2], which engages yoke, 15 Fig. 5 1s a section on line w 11-, Fig. 2, illusi on the inside of the apron for sh fting the 1 l l i trating the. carriage-feed. Fig. 6 is an end eluteh 6 and throwing in and out the main 3 view of a portion of the apron-carriage with drive. 20 represents a hand-lever lived to the automaticstopping mechanisminposition. Q the rock-shaft 20'. (See Fig. 8.} The inner Fig. 7 is a detail view of the cam for operatend of said shaft on the inside of the apron ing the lever for automatically stopping the has a rock-arm 20", which engages the yoke travel of the carriage. Fig. 8 is a horizontal H of the sleeve 10 for shifting gear-wheels 3 section through a portion of the apron and II and 12 into and out of mesh with bevel the levers and rock-shafts for controlling the i gear-wheel It). Gear-wheel 16 meshes with slow feed and high speed. Figs. 9 and 1H the spur gear-wheel 22, which is journaled in are sections on line r 2, Fig. 8, illustrating the apron. (See Fig.1.) Gear-wheeIQZhas the interlockingdevice between the slow-feed a sleeve on which is formed the bevel-gear 23. (Sel- Fig. 5.) 24 represents a3ournal-braeket 35- and high-speed levers.

1 presents the lathe-bed, on the ways of in the apron, in which is ournaled the sleevewbirh is mounted the usual carriage 2, said 5 nut 25, engaging the threads of the stationary carriage having the usual apron 3. screw-rod 4. 26 represents acollar forhold- 4 represents a stationary screw suspended 1 ing the sleeve 25 in place. Sleeve25 is pro- 4 alon the lathe-bed, and it is upon this stavidedatoneeml with the bevelgear-wheelzl', Lionary screw that the carriage-feeding dei which meshes with thegrar-wheel 23. Gearvices rotate to feed the carriage. i wheels 22 and 2?, are lixed to revolve together 0 5 represents the feed-shaft of the lathe, on a stud-shalt is. as shown in Fig. Uh- I driven from the head-stock by any suitable j viously as the drive is controlled by levers 20 45 mechanism. l l and 21 the sleevr-nut 25 may be caused to re- The details of the first portion of the feedvolve in either direction on the screw-rod 4, ing device are best seen in Fig. 3, in which 6 thus propelling the carriage in either direcrepresents a clutch keyed to the shaft and. tion.

we have provided an automatic trip for throwing outthe carriage-feed, the details I (see Figs. 1, 6, and T) of which are as follows:

29 represents an adjustable stop mounted on the carriage-ways of the bed and having a cam-like projection. (See Fig. 1.) 3O represents a trip or rock-shaft journaled in the carriage-bracket 31, so as-to oscillate therein. 32 represents a coil spring. one end of which is attached to the brarf'ket 31, the other end to a collar on shaft 30, so as to return the shaft 5 to normal position whenever it is tripped for i stopping the carriage. Shaft 3 is provided at each end with a radial tripping-arm 33, a

fixed to shaft 39 and provided at its outer end with a journal-pin 34, carrying the antifrietion-roller 35, adapted to ride the cam of the bracket- 529. pins 34 are journaled within the apron, so as to be moved longitudinally in their bearings. I As shown in Fig. 6, one end of said pin 34 carries the roller35 on the inside of the apron, the other end of the pin 34 being on the outside of the apron and engaging the end of the rocking arm The shaft 31) is provided with a sleeve 36, having a cam-biock 37 and engaging an antifrietional roller 39, journale'd on a pin on the inside of the level- 21, as shown in Figs. 1, 6, 7. 'hen the roller 35 encounters the bracket 29 in ts adjusted position, it is pushed out, rocking the arm 33, the shaft 30, and the sleeve 236, thereby l with the shaft 44, depending-upon which ofeausing the cam 37 to push out the roller 38 and moving lever 21 to disengage the clutch 6. In order to accelerate this movement of the lever 21 and to disengage the teeth of the clutch members 6 and 8 in aquick throw,

we provide the following devices: 39 represents a taper pin havinga bevel point, said pin being fixed in the apron 3, as shown in The lever 21 is provided with a cor- Fig. 3, responding taper pin 40,- having a stem 41.

moving in and out in a screw-cap 42. engag 43 represents a coilspring ing the lever 21. between the inner end of the taper pin 4 am] the inner eno of the cap 42. are so placed that as the lever 21 is manipulated they intercept, and then pin 40 is deflected.

\Vhcn the points of pins 39 and 40 pass each other; the spring 43 forces away the pin 40, thus imparting to the lever 21 a'quick throw, which effects an instantaneous disengagement of the teeth of clutch members 6 and 8, there- -by minimizing the wear and breakage which engagement of the clutch-teeth. ous that by the use of two adjustable brackets 29, one at each end of the carriage, the carriage can bev automatically stopped in either direction of its travel.

'e have provided the following devices for imparting a high speed to the carriage in either direction. 44 represents a high-speed shaft suspended along the lathe-bed and suitably driven from the head-stock or from the It to be understood that these 2 Pins 39 and 40 5 would result from a slow engagement and dis- It is obvicounter-shaft. The details of this mechanism are best seen in Figs. 1, 2, and 4. 45 repre- V scnts a sleeve keyed on shaft 44, so as to slide thereon, and provided with a bevel frictioni clutch disk or cup 46 at each end. 47 reprel sents sleeves journaled in the apron-bearing bracket 48 and having the friction-clutch i disk or cups 49 cooperating with the adjacent 1 cups 46. Sleeves 47 are provided with the j bevei gear-wheels 50, which are always in mesh with the int rmediate transversely-journaled bevel gear-wheel 51. Bevel gear-wheel l 51 is fixed on the sleeve of the spur gearwhecl 52, which spur gear-wheel and its sleeve are journaled on the journal-pin 54. (See Fig. 4.) Disk 46 is provided with a yoke 54 direction on shaft 44.

5 Looking at Fig. 1, 55 representsa handwlieel fixed on the stud-shaft- 56, to which is also fixed, on the inside of the apron. a gear 57 and f engaging with the gear-wheel 22 for propelling the carriage by hand. The spur gearwheel 57 also meshes with this gear-wheel for imparting fast speed in either direction to 1 the carriage. 58 represents a. handlever l fixed to the rock-shaft 58'. (See Fig. 8.) Rock-shaft-JS' has a rock-arm 58 on the inside 3 of the apron, which engages with the yoke 54 l on shaft 44. It is obvious that as the handlever 58 is thrown in either direction either of the'lievcl gear-wheels 50 are fixed to turn the frictional members 46 is in an engagement with its cooperating t'rictional'inember 4.9. In order to prevent the slow. feed and the 1 high speed from being thrown in at the same time, we provide the locking-bar 59. (Shown i in Fig. 1, also Figs. 8, 9, and 10.) This locking-bar slides in the journal-brackets 60 on the outside of the apron. The levers 20 and i 58 are provided with locking-detents 61, into I which the opposite ends of the locking-bar 59 l alternately engage. If the locking-bar 59 be i thrown in reverse direction to free the lever the other end of the bar 59 engages the lever 2U and'locks the slow feed out of commission. E The details of the interlock between levers i 20 and 58 are more fully shown .inFigs. 8, 9, l and 10. in Fig. 10 both leversf'are in idle position, lever 58 being locked in idle position by rod 59 engaging the detent 61 of lever 58, which leaves lever 20 free to be thrown in either direction for a direct or reverse 2 feed. In Fig. 9 the lever 20 has been moved to one position. and the fulcrum end of lever 20, engaging the end of the rod 59, prevents i the rod 59 from being shifted, and so locks the lever 58 in idle position. With the parts i as shown in Fig. 10 if rod 59 be shifted to engage the detent 61 in lever 20.]ever 58 may be thrown in either direction and lever 20 will i be lockedout of commission except when lever 58 is in the intermediate or idle-position.

for shifting the clutch members 46 in either 58, so that the high speed may be'availed of,

This feed meuanism, which we have described In detail, gives every facility to the carriage movement with the fewest possible parts and with a controlling-lock, whereby those different devices are necessarily employed independently.

In Fig. 1 the locking-bar is shown engaging lever 58. so that the fast feed cannot be employed,'and having the lever free for operating the reversing-gears of the regular feed.

Having described our invention, we claim-- 1. in a carriage-feed, a feed-shaft, transmitting de 'iccsthereon for propelling the car- :riagc, a clutch between said feed-shaft and trip the same when the carriage meets the adjustable bracket, substantially as described.

2. In a carriage-feed, a slow-feed shaft and a higlrspeed shaft. transmitting devices comprising reversing gear-wheels on the slow-feed shaft for propelling the carriage, means for throwing into operation or idle position said gear-wheels, transmitting devices comprising reversing gear-wheels on the high-speed shaft for propelling the carriage, means ("or throwing said gears into operation or idle position, and a locking device between the two sets of transmitting devices, whereby they are alternatcly locked and released, substantially as described.

3. In a carriage-feed, a stationary screwrod, a slow-feed shaft and a higlrspeed shaft, one set of transmitting devices comprising reversing gear-wheels between the slow-feed shaft and the screw-rod, means for throwing said gear'wheels into train or into idle position, a second set of transmitting devices comprising reversing gearwheels between the high-speed shaft and the screw-rod, means for throwing said gear-wheels into train or into idle position, levers for controlling the two independent sets of reversing gear-wheels, and a locking-bar between said levers, adapt-- ed tolock one lever in engaging position ,a sleeve-nut on the screw irod, transmitting devices including reversing gear-wheels between the said sleeve-nut and the slow-feed shaft, a lever for controlling said reversing gearwheels, transmitting devices including reversing gear-wheels between the high-speed shaft and the said sleeve-nut, a lever for controlling said reversing gearwheels', a locking-bar movably mounted between the said two. levers, the said levers being provided with dctents adapted to be alternately engaged by the opposite ends of said locking-bar when it is shifted in opposite directions whereby the said slow feed and high speed are independently available, substantially as described.

- 5. In a carriage-feed, a slow-feed shaft and a high-speed shaft, independent sets of transmitting devices, on each of said shafts for propelling the carriage: levers for independently controlling said transmitting devices, and a locking device between the said levers adapted to lock one lever when the other lever is released and vice versa, whereby said slow feed and high speed can only he used independently, substantially as described.

' 6. In a carriage-feed, comprising two sets of transmitting devices, for independently propelling the carriage, levers for throwing either to be alternately opposed to opposite ends of said lock-bar, whereby said bar can only be shifted from one detcnt to the other, when the levers are bo h in idle position, substantially as described. a In testimony whereof we have hereunto set our hands.

'ILLIAM LODGE. NICHOLAS 1). CHAR-l).

\Vitnesscs:

OLiv|-:n B. Kmsnn,

Luise been. 

